/* Copyright (c) 2009, Code Aurora Forum. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * Neither the name of Code Aurora Forum, Inc. nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #ifndef __MACH_CLK_H #define __MACH_CLK_H /* Magic rate value for use with PM QOS to request the board's maximum * supported AXI rate. PM QOS will only pass positive s32 rate values * through to the clock driver, so INT_MAX is used. */ #define MSM_AXI_MAX_FREQ LONG_MAX enum clk_reset_action { CLK_RESET_DEASSERT = 0, CLK_RESET_ASSERT = 1 }; struct clk; /* Rate is minimum clock rate in Hz */ int clk_set_min_rate(struct clk *clk, unsigned long rate); /* Rate is maximum clock rate in Hz */ int clk_set_max_rate(struct clk *clk, unsigned long rate); /* Assert/Deassert reset to a hardware block associated with a clock */ int clk_reset(struct clk *clk, enum clk_reset_action action); /* Set clock-specific configuration parameters */ int clk_set_flags(struct clk *clk, unsigned long flags); #endif